8278061550 has 96 divisors (see below), whose sum is σ = 23574741120. Its totient is φ = 1901174400.

The previous prime is 8278061507. The next prime is 8278061567. The reversal of 8278061550 is 551608728.

8278061550 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100677 + ... + 163376.

It is an arithmetic number, because the mean of its divisors is an integer number (245570220).

Almost surely, 2^8278061550 is an apocalyptic number.

8278061550 is an abundant number, since it is smaller than the sum of its proper divisors (15296679570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8278061550 is a wasteful number, since it uses less digits than its factorization.

8278061550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264098 (or 264093 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 8278061550 is about 90983.8532378136. The cubic root of 8278061550 is about 2022.9083966642.

The spelling of 8278061550 in words is "eight billion, two hundred seventy-eight million, sixty-one thousand, five hundred fifty".